On Wed, Sep 08, 2004 at 02:18:38PM -0400, JOSEPH RYAN wrote:
: b.) The A5 stuff is definitely the most stable part of the Perl6
: design. As far as I know, it hasn't really changed much at all over
: the past 2 years. You could probably work directly off of A5 and
: S5 without having to worry if the reality is much different from
: the document.
The main change we've made since then is that $?foo variables are
scoped to the current rule, while $foo must be declared outside
the rule (presuming C<use strict>).
The other change we've made since then is that named rules aren't
remembered as named fields unless you put a ? inside, so that after
you've done
/<?foo> <ws> <?bar>/
there are potentially $0�foo� and $0�bar� fields, but no $0�ws�. That is,
the above is equivalent to
/$?foo:=<foo> <ws> $?bar:=<bar>/
Larry
